exclude :test_mul_balance, "undefined symbol: rb_big_mul_balance"
exclude :test_mul_balance_2x16, "undefined symbol: rb_big_mul_normal"
exclude :test_mul_balance_2x17, "undefined symbol: rb_big_mul_normal"
exclude :test_mul_gmp, "undefined symbol: rb_big_mul_normal"
exclude :test_mul_karatsuba, "undefined symbol: rb_big_mul_karatsuba"
exclude :test_mul_karatsuba_borrow, "undefined symbol: rb_big_mul_normal"
exclude :test_mul_karatsuba_carry2, "undefined symbol: rb_big_mul_normal"
exclude :test_mul_karatsuba_odd_xy, "undefined symbol: rb_big_mul_normal"
exclude :test_mul_karatsuba_odd_y, "undefined symbol: rb_big_mul_normal"
exclude :test_mul_karatsuba_x1_gt_x0, "undefined symbol: rb_big_mul_normal"
exclude :test_mul_karatsuba_x1_gt_x0_and_y1_gt_y0, "undefined symbol: rb_big_mul_normal"
exclude :test_mul_karatsuba_y1_gt_y0, "undefined symbol: rb_big_mul_normal"
exclude :test_mul_normal, "undefined symbol: rb_big_mul_normal"
exclude :test_mul_normal_max_max, "undefined symbol: rb_big_mul_normal"
exclude :test_mul_normal_zero_in_x, "undefined symbol: rb_big_mul_normal"
exclude :test_mul_normal_zero_in_y, "undefined symbol: rb_big_mul_normal"
exclude :test_mul_toom3, "undefined symbol: rb_big_mul_normal"
exclude :test_sq_fast, "undefined symbol: rb_big_sq_fast"
exclude :test_sq_fast_max2, "undefined symbol: rb_big_mul_normal"
exclude :test_sq_fast_zero_in_middle, "undefined symbol: rb_big_mul_normal"
